General Science Practice Question and Answer

Q:

Which one of the following is not an antioxidant? 

523 0

  • 1
    Vitamin E
    Correct
    Wrong
  • 2
    Selenium
    Correct
    Wrong
  • 3
    Lycopene
    Correct
    Wrong
  • 4
    Aspartame
    Correct
    Wrong
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Answer : 4. "Aspartame"
Explanation :

All of the following are peroxidases.

(A) Vitamin E

(B) Selenium

(C) Lycopene

Q:

Which is used to make synthetic fibers?

438 0

  • 1
    HCl
    Correct
    Wrong
  • 2
    Bleaching powder
    Correct
    Wrong
  • 3
    chlorine
    Correct
    Wrong
  • 4
    NaOH
    Correct
    Wrong
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Answer : 4. "NaOH"

Q:

First mammal to be cloned was -

475 0

  • 1
    Sheep
    Correct
    Wrong
  • 2
    Goat
    Correct
    Wrong
  • 3
    Rat
    Correct
    Wrong
  • 4
    Frog
    Correct
    Wrong
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Answer : 1. "Sheep "
Explanation :

Dolly (5 July 1996 – 14 February 2003) was a female domestic sheep, and the first mammal cloned from an adult somatic cell using the process of nuclear transfer.

Q:

Which is called the emergency hormone in the human body?

537 0

  • 1
    Thyroxin
    Correct
    Wrong
  • 2
    Insulin
    Correct
    Wrong
  • 3
    Adrenaline
    Correct
    Wrong
  • 4
    Progesterone
    Correct
    Wrong
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Answer : 3. "Adrenaline "
Explanation :

1. It is secreted in the adrenal gland into the medulla as well as in some neurons of the central nervous system.

2. It is known as an emergency hormone because it initiates an instant response that causes the person to think about the stress and react quickly.

Q:

The escape velocity of the Earth is?

698 0

  • 1
    15.0 km/sec
    Correct
    Wrong
  • 2
    21.1 km/sec
    Correct
    Wrong
  • 3
    7.0 km/sec
    Correct
    Wrong
  • 4
    11.2 km/sec
    Correct
    Wrong
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Answer : 4. "11.2 km/sec"
Explanation :

1. The lowest velocity used to escape the gravitational pull of the Earth is called escape velocity.

2. The escape velocity of the Earth is 11.2 km/second.

Q:

Pancreatic juice contains which enzyme that breaks down emulsified fats?

593 0

  • 1
    Lipase
    Correct
    Wrong
  • 2
    Pepsin
    Correct
    Wrong
  • 3
    Trypsin
    Correct
    Wrong
  • 4
    Amylase
    Correct
    Wrong
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Answer : 1. "Lipase"
Explanation :

1. Pancreatic juice contains a lipase enzyme, which decomposes emulsified fats.

2. Lipase: It is an enzyme found in pancreatic juice and responsible for the breakdown of emulsified fats.

Q:

Manikya (Ruby) and Sapphire are the oxides of?

503 0

  • 1
    calcium
    Correct
    Wrong
  • 2
    aluminum
    Correct
    Wrong
  • 3
    silicone
    Correct
    Wrong
  • 4
    Silver
    Correct
    Wrong
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Answer : 2. "aluminum"
Explanation :

Manikya, also known as ruby, and sapphire are gemstones that are forms of the mineral corundum. Corundum is not an oxide but rather a crystalline form of aluminum oxide (Al₂O₃). Both ruby and sapphire are varieties of corundum, with ruby being red due to the presence of chromium impurities, and sapphire coming in various colors, except red (which would be classified as ruby), often due to different trace elements.

Q:

Which one of the following is not correctly matched?

468 0

  • 1
    DPT - Vaccine
    Correct
    Wrong
  • 2
    DOTS - Tuberculosis
    Correct
    Wrong
  • 3
    Adrenaline - Hormone
    Correct
    Wrong
  • 4
    AB+ Blood group - Universal Donor
    Correct
    Wrong
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Answer : 4. "AB+ Blood group - Universal Donor "
Explanation :

All of the following are matched. 

(A) DPT - Vaccine

(B) DOTS - Tuberculosis 

(C) Adrenaline - Hormone

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